So much for “don’t be evil.” On Tuesday of this week, Internet search (and just about everything else) giant Google announced a new unified privacy policy for 60 of its online services, including Gmail, Google+, Google Maps, and YouTube. The policy states that as of March 1, Google will be able to use data it collects about users from one service in any of the other services that users are signed into — and there’s no way to opt out.

Understandably, internet users and privacy watchdogs are up in arms about the move. Gizmodo’s Mat Honan explains what the change will mean for Google users (i.e., pretty much everyone), and why it’s dangerous: